Motor

Abstract

The present invention may provide a motor including a housing, a stator disposed in the housing, a rotor disposed in the stator, a shaft coupled to the rotor, and a bus bar disposed on the stator and including a plurality of terminals, wherein the plurality of terminals include a neutral terminal and a plurality of phase terminals, the neutral terminal includes a first body of which a first width in a radial direction is greater than a second width in an axial direction and a plurality of first connectors extending from the first body, and the phase terminal includes a second body of which a first width in the radial direction is less than a second width in the axial direction and a plurality of second connectors extending from the second body.

The invention claimed is: 
     
       1. A motor comprising:
 a housing; 
 a stator disposed in the housing; 
 a rotor disposed in the stator; 
 a shaft coupled to the rotor; and 
 a bus bar disposed on the stator and including a plurality of terminals, 
 wherein the plurality of terminals include a neutral terminal and a plurality of phase terminals, 
 the neutral terminal includes a first body of which a first width in a radial direction is greater than a second width in an axial direction and a plurality of first connectors extending from the first body, and 
 the phase terminal includes a second body of which a first width in the radial direction is less than a second width in the axial direction and a plurality of second connectors extending from the second body, 
 wherein the first body is disposed on the first orbit around a center of the bus bar, 
 wherein the second body is disposed on the second orbit around a center of the bus bar, 
 wherein each of the first connector and the second connector includes a terminal that contacts a coil of the stator, and 
 wherein the plurality of terminals are radially arranged between the first orbit and the second orbit and arranged in a circumferential direction. 
 
     
     
       2. The motor of  claim 1 , wherein:
 a first width of the neutral terminal is equal to a second width of the phase terminal; and 
 a second width of the neutral terminal is equal to a first width of the phase terminal. 
 
     
     
       3. The motor of  claim 1 , wherein a width of the first connector of the neutral terminal in the axial direction is equal to a width of the second connector of the phase terminal in the radial direction. 
     
     
       4. The motor of  claim 1 , wherein:
 the plurality of phase terminals include a first phase terminal, a second phase terminal, and a third phase terminal; 
 a second body of the first phase terminal and a second body of the third phase terminal are disposed on the first orbit; and 
 a second body of the second phase terminal is disposed on the second orbit. 
 
     
     
       5. The motor of  claim 4 , wherein the first orbit is disposed inward from the second orbit around the center of the bus bar. 
     
     
       6. The motor of  claim 1 , wherein the bus bar includes a body including a plurality of through holes, and positions of the through holes correspond to a position of the terminal. 
     
     
       7. The motor of  claim 4 , wherein:
 the second connector includes a lateral portion extending from one side of the second body, a vertical portion extending upward from one portion of the lateral portion, and 
 the terminal protrude from one portion of the vertical portion. 
 
     
     
       8. The motor of  claim 7 , wherein the terminal of any one phase terminal among the first phase terminal, the second phase terminal, and the third phase terminal is disposed between two terminals of another phase terminal in a circumferential direction. 
     
     
       9. The motor of  claim 7 , wherein two terminals of the first phase terminal are asymmetrically disposed with respect to a virtual line connecting a center of the first orbit and a center of the second body of the first phase terminal. 
     
     
       10. The motor of  claim 9 , wherein two terminals of the second phase terminal are symmetrically disposed with reference to a virtual line connecting the center of the first orbit and a center of the second body of the second phase terminal. 
     
     
       11. The motor of  claim 3 , wherein a length from a center of the bus bar to the first body of the neutral terminal in the radial direction is greater than a length from the center of the bus bar to the second body of the phase terminal in the radial direction.